Construction accidents1 accidents

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Unformatted text preview: ut some or all of the work to specialty trade contractors
Project owners occasionally contract with a design­
build firm to perform both design and construction Root Causes for Construction
Accidents1
Accidents Inadequate construction planning
Lack of proper training
Deficient enforcement of training
Unsafe equipment
Unsafe methods or sequencing
Unsafe site conditions
Not using safety equipment that was provided Toole, “Construction Site Safety Roles”, 2002 1 Accidents Linked to Design1,2
Accidents 22% of 226 injuries that occurred from 2000­2002 in Oregon, WA and CA
42% of 224 fatalities in US between 1990­2003
In Europe, a 1991 study concluded that 60% of fatal accidents resulted from decisions made before site work began Behm, “Linking Construction Fatalities to the Design for Construction Safety Concept”, 2005 1 European Foundation for the Improvement of Living and Working Conditions 2 Where Do Design Professionals
Fit In?
Fit Considering safety issues related to the permanent facility during the design stage
Designing out anticipated hazards Considering Safety During Design
Offers the Most Payoff1
Offers
High Conceptual Design
Detailed Engineering
Procurement Ability to
Influence
Safety Construction
Start-up Low Project Schedule
1 Szymberski 1987 What Types of Design Decisions?
What IBC paragraph 704.11.1 requires that a parapet wall be at least 30 inches high
OSHA 1926 Subpart M requires a 36­42 inch guardrail or other fall protection
If the design professional specifies a 36­42 inch high parapet wall, fall protection would not be required DfCS Process1
DfCS
• Establish design for
safety expectations
• Include construction and
operation perspective
• Identify design for safety
process and tools Design
Kickoff Design Trade contractor
involvement Gambatese 1 Internal
Review • QA/QC
• Crossdiscipline
review External
Review • Focused safety
review
• Owner review Issue for
Construction DfCS Barriers
DfCS Like many good ideas, DfCS faces a number of barriers that will likely slow its adoption.
Potential solutions to these barriers...
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